US3387832A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for dispersing a gas in a liquid
Assignee: Wyeth Holdings LLC
•
Filing: 1967-05-02
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Granted: 1968-06-11
•
Expires: 1987-05-02
Abstract
No abstract record available.
Inventors
- 👤 Earl W Nelson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:20
CPC Classifications
C; C01; C01G; C01G23/00; C01G23/02; C01G23/022; C01G23/024; B; B01; B01F; B01F23/00; B01F23/20; B01F23/23; B01F23/233; B01F23/2366; B01F23/2368; B01F23/2336; B01F23/23362; B01F27/00; B01F27/05; B01F27/11; B01F27/115
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1526596A
Cited
US2530814A
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US2448590A
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US2628827A
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US2542031A
Cited
US2678912A
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US2750328A
Cited
US3271304A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-06-11 | 1971-12-11 | 1972-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-11 | 1975-12-11 | 1976-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-11 | 1979-12-11 | 1980-06-11 | $7700.00 | Window Closed / Lapsed |